From 9a9e12a1299181bc38abbb4e8dbb62569bcbc551 Mon Sep 17 00:00:00 2001
From: dearblue <dearblue@users.noreply.github.com>
Date: Tue, 1 Jan 2019 13:15:48 +0900
Subject: Add proc composition feature (CRuby-2.6 compatible)

  - Proc#<< and Proc#>>
  - Method#<< and Method#>>
---
 mrbgems/mruby-proc-ext/mrblib/proc.rb | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'mrbgems/mruby-proc-ext')

diff --git a/mrbgems/mruby-proc-ext/mrblib/proc.rb b/mrbgems/mruby-proc-ext/mrblib/proc.rb
index 789b7a3ac..abe9c7944 100644
--- a/mrbgems/mruby-proc-ext/mrblib/proc.rb
+++ b/mrbgems/mruby-proc-ext/mrblib/proc.rb
@@ -39,4 +39,12 @@ class Proc
     make_curry.call
   end
 
+  def <<(other)
+    ->(*args, &block) { call(other.call(*args, &block)) }
+  end
+
+  def >>(other)
+    ->(*args, &block) { other.call(call(*args, &block)) }
+  end
+
 end
-- 
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